The inactivity of astronauts during spaceflights presents a significant risk to their muscles, according to a study which simulated the impact of low gravity environments such as the Moon or Mars on body.

If you are not aware that a giant asteroid the size of a football field flew past Earth over the weekend, you are not alone as even NASA scientists got to know about the flyby only a few hours before it happened, media reported.

Karan said that it is the duty of every parent to give time to their children otherwise if parents don't give time and understand their children, children tend to take revenge. They also, in turn, don't give time."